新型长冲程水力加压推进器设计及改进

发布时间：2018-01-04 17:34

本文关键词：新型长冲程水力加压推进器设计及改进　出处：《燕山大学》2015年硕士论文　论文类型：学位论文

【摘要】：在定向井和水平井钻进过程中,经常由于岩屑床、井眼轨迹不圆滑、钻井液性能差等原因,钻柱与井壁的摩擦作用大,导致大钩减小的负荷一部分为钻柱与井壁的摩擦,剩余的部分才加在钻头上。这种托压现象将会大幅度降低钻井速度,形成不安全隐患,增加钻井作业风险。在我国应用水力加压解决托压问题已有几十年的历史,但并没有得到很好的效果,因此,设计研究新型水力加压推进器具有重要的意义。本课题来源于中国石化集团江苏石油勘探局委托秦皇岛燕山大学李子丰教授进行的“新型水力加压推进器设计及送钻技术应用研究”项目。为弥补国内水力加压器设计缺陷,设计一种长冲程可缩入式水力加压推进器,并通过现场试验总结经验,完成方案优化改进。本文进行了长冲程可缩入式水力加压推进器的设计,其中充分考虑了井下复杂工况,进行托台和导向槽的防失效、心轴防掉及心轴下接头与密封接头的防撞设计。运用Pro/E绘图软件完成三维运动仿真,运用3D打印技术打印微型水力加压推进器模型,完成工作原理验证。新型水力加压推进器生产完成后,在江苏油田永43-3井结合李子丰教授研发的定向井送钻技术软件进行了现场试验,取得良好效果。并在试验完成后对工具进行拆卸检查,充分总结经验。最后提出了水力加压推进器的改进方案。
[Abstract]:In the drilling process of directional well and horizontal well, the friction between drill string and well wall is great due to cuttings bed, non-smooth well trajectory, poor drilling fluid performance and so on. The load that leads to the reduction of the hook is partly the friction between the drill string and the shaft wall, and the remaining part is added to the drill bit. This pressure relief phenomenon will greatly reduce the drilling speed and form an unsafe hidden danger. To increase the risk of drilling operation. Hydraulic pressure has been used to solve the pressure problem in China for decades, but it has not got a good effect. It is of great significance to design and study a new type of hydraulic pressure thruster. This subject comes from a project commissioned by Professor Li Zifeng of Qinhuangdao Yanshan University by Jiangsu Petroleum Exploration Bureau of Sinopec Group. " New hydraulic pressure thruster design and drilling technology application research "project. In order to make up for the domestic hydraulic pressurizer design defects." A kind of long stroke retractable hydraulic pressure thruster is designed, and the design of long stroke retractable hydraulic pressure propeller is carried out. Considering the complex working conditions of underground, the anti-failure of the support and guide groove, the anti-collision design of the core shaft and the joint under the core shaft and the seal joint are carried out, and the three-dimensional motion simulation is completed by using the Pro/E drawing software. The model of miniature hydraulic pressure propeller is printed by 3D printing technology, and the working principle is verified. After the production of the new type hydraulic pressurized propeller is finished. The field test was carried out in Yon43-3 well of Jiangsu Oilfield combined with the directional well feeding technology software developed by Professor Li Zifeng. Good results were obtained, and the tool was disassembled and checked after the test was completed. Finally, the improvement scheme of hydraulic pressure propeller is put forward.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE927.9

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